Nokia ESB26 User Manual page 183

14.
Debugging the MSTP TCM
The debug mstp tcm command, in Privileged (Enable) mode, displays logs of the port
Topology Change state Machine in the Multiple Spanning Tree Protocol (MSTP) for a
specified port range. Use the no form of this command to disable the MSTP TCM debugging.
The debug mstp tcm command will not be saved after reload.
By default, MSTP TCM debugging is disabled.
Command Syntax
device-name#debug mstp tcm {all|flags|events|stats} from <P
device-name#no debug mstp tcm {all|flags|events|stats}
Argument Description
all Displays logs of all three TCM options (flags, events, stats) for the specified port range.
flags Displays only the TCM flags logs for the specified port range.
events Displays only the TCM events logs for the specified port range.
stats Displays only the TCM stats logs for the specified port range.
<P > Number of the first port specifying the port range. The number must be in logical port
a
number format.
<P > Number of the last port specifying the port range. The number must be in logical port
z
number format.
Example
device-name# debug mstp tcm all from 1 to 20
tMstPRT: 1970/01/01 16:02:53 : TCM INACTIVE -> INACTIVE port 20 mst 2
tMstPRT: 1970/01/01 16:02:53 : TCM DETECTED -> ACTIVE port 18
Disabling MSTP Ports Debug Information
The no debug mstp command, in Privileged (Enable) mode, used without arguments,
disables displaying of MSTP debug information all debug processes. The command is
effective if any MSTP ports debugging has been enabled. (By default, MSTP ports debugging
is disabled.)
Command Syntax
device-name#no debug mstp {roles |
Argument Description for Roles/Handshake
roles Disables displaying logs of the MSTP port roles.
handshake Disables displaying logs of the devices' MSTP handshaking.
all Disables displaying logs for all instances.
instance-id Disables displaying logs for the specified MST instance ID; the range is 0 to 15.
MN700004 Rev 01
Multiple Spanning Tree Protocol (MSTP)
handshake
172
> to <P
a
instance-id}
} {all |
>
z